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In this study of a single-type BP-DES, the majority of stent struts were covered within 3 months from implantation. While the quantitative neointimal accumulation plateaued at 6 months with no further significant increase beyond 6 months, the neointima continued to evolve qualitatively and mature along with better strut coverage between 6 and 12 months after implantation.

We present a case of a 64-year-old man with coronary artery disease, who underwent a percutaneous coronary intervention of the circumflex artery. As the guidewire was being withdrawn from the target vessel, it became entrapped by the structure of the previously implanted stent. Attempts to retrieve the foreign body were unsuccessful. Changes in electrocardiogram were observed during the procedure, and the level of cardiac biomarkers increased within the next 24-hours. The patient was admitted to the Cardiac Surgery Department. Remnants of the foreign body were removed under visual control using extracorporeal circulation, and coronary artery bypass grafting was performed. Treatment options and outcomes are discussed.